However, this map does not show the spread of other radionuclides which emit alpha radiation, such as Plutonium-239, and beta radiation such as Strontium-90, which are particularly hazardous when lodged inside the body when inhaled or ingested.

Nor does this map accurately represent the contamination today, in March 2016, as radioactive materials continue to be emitted by the Fukushima Daiichi nuclear power plant via air and water, while winds, rain, snow, ocean waves, rivers, animals, vehicles, ‘decontamintation’ and incineration of radioactive waste will continue to re-distribute and spread it further, as discussed by ROBERT JACOBS in “The Broken Maps of Fukushima”:

2012 map showing wide deposition of radionuclides from FDNPP

Bo Jacobs re how the contamination maps become innacurate or ‘broken’ because contamination is further spread around by rain, snow, wind, floods, incineration of radioactive waste, animals and more: http://www.dianuke.org/broken-maps-fukushima/